Added filter buttons for realtime.

components/common/FilterButtons.js

@@ -0,0 +1,11 @@
+import React from 'react';
+import ButtonLayout from 'components/layout/ButtonLayout';
+import ButtonGroup from './ButtonGroup';
+
+export default function FilterButtons({ buttons, selected, onClick }) {
+  return (
+    <ButtonLayout>
+      <ButtonGroup size="xsmall" items={buttons} selectedItem={selected} onClick={onClick} />
+    </ButtonLayout>
+  );
+}